public class demo23 {
    public static void main(String[] args) throws InterruptedException {
        Object locker1=new Object();
        Object locker2=new Object();
        Thread t1=new Thread(()->{
            synchronized(locker1){
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
                synchronized (locker2){

                }
                System.out.println("t1 线程结束");
            }

        });
        Thread t2=new Thread(()->{
            synchronized(locker2){
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
                synchronized(locker1){


                }
                System.out.println("t2 线程结束");
            }

        });
        t1.start();
        t2.start();
        t1.join();
        t2.join();
    }
}
